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If the mean of a data set is 15 and one value of 10 is removed, what is the expected change in the mean?
  • a)
    Cannot be determined without knowing other values.
  • b)
    The mean will decrease.
  • c)
    The mean will increase.
  • d)
    The mean will remain 15.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
If the mean of a data set is 15 and one value of 10 is removed, what i...
Removing a value that is lower than the current mean (in this case, 10 is less than 15) will generally cause the mean to increase. This is because the remaining values will now average out to a higher number without the lower value pulling it down.
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